deps(example): bump the dependencies group

Bumps the dependencies group in /examples/nestjs-fastify with 2 updates: [@nestjs/core](https://github.com/nestjs/nest/tree/HEAD/packages/core) and [@nestjs/platform-fastify](https://github.com/nestjs/nest/tree/HEAD/packages/platform-fastify).


Updates `@nestjs/core` from 10.4.11 to 10.4.12
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.12/packages/core)

Updates `@nestjs/platform-fastify` from 10.4.11 to 10.4.12
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.12/packages/platform-fastify)

---
updated-dependencies:
- dependency-name: "@nestjs/core"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: "@nestjs/platform-fastify"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/nestjs-fastify/package.json

@@ -20,8 +20,8 @@
     "@arcjet/nest": "file:../../arcjet-nest",
     "@nestjs/common": "^10.4.4",
     "@nestjs/config": "^3.3.0",
-    "@nestjs/core": "^10.4.11",
-    "@nestjs/platform-fastify": "^10.4.11",
+    "@nestjs/core": "^10.4.12",
+    "@nestjs/platform-fastify": "^10.4.12",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },